Are “II” instead of the usual base pairs (i.e. A, C, G, T) for rs Numbers in 23andMe Results Insertions? : promethease

The raw data of my 23andMe results contains “II” instead of the usual base pairs (i.e. A, C, G, T) for numerous rs Numbers/Markers. I assume that these correspond to Insertions, correct? I am also assuming that these insertions typically have more than one base pair (for both alleles) inserted, explaining why the results do not display them, but display “I” instead, right? In the affirmative, why would I have so many (I seem to have numerous of them)? Is this normal?

Thank you. J

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